The Create Lab is dedicated to creating materials from one or several image inputs or by mixing existing materials.The interface of the Create Lab features on the right the Layer Stack and the Export Panel.
To create new materials, two ways are possible:
Importing Substance Materials
Drag and drop a material from the Resources list of from your collections into the Layer Stack.
Material Creation Templates
Drag and drop files or click on the link in the Layer Stack to import multiple images and open the Material Creation Template window:
For more information about each template, see the dedicated pages: